Description: This dataset provides friction data from ring-shear tests on glass beads with a diameter of 100-200 µm used in analogue modelling of tectonic processes as a rock analogue for “weak” layers in the earth’s upper crust (e.g. Klinkmüller et al., 2016; Ritter et al., 2016; Lohrmann et al., 2003) or as “seismogenic” crust (Rudolf et al., 2022). The glass beads are characterized by means of internal friction coefficients µ and cohesion C. According to our analysis the materials show a Mohr-Coulomb behaviour characterized by a linear failure envelope. Peak, dynamic and reactivation friction coefficients of the glass beads are µP = 0.50 , µD = 0.39, and µR = 0.46, respectively (Table 5). Cohesion of the material is close to zero Pa. The material shows a minor rate-weakening of ~1% per ten-fold change in shear velocity v and a stick-slip behaviour at low shear velocities and at high loads.
Global identifier:
Doi(
"10.5880/GFZ.4.1.2022.001",
)
Origins: /Wissenschaft/Helmholtz-Gemeinschaft/GFZ
Tags: Kind ? Daten ? Modellierung ? Cohesion ? EPOS ? Friction coefficient ? Microspheres > Glassy ? Ring-shear tester ? TCS MSL ? analogue modelling results ? analogue models of geologic processes ? deformation > shearing ? fault ? multi-scale laboratories ? property data of analogue modelling materials ? software tools ?
License: cc-by/4.0
Language: Englisch/English
Issued: 2022-01-01
Time ranges: 2022-01-01 - 2022-01-01
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